Start by patting the chicken dry using paper towels and generously seasoning it with salt, pepper, and fragrant rosemary. In a large Dutch oven, warm up the olive oil over medium heat. Proceed to brown the chicken pieces in batches until they develop a beautiful, all-around golden hue, which should take about 5 to 7 minutes per batch. Once they're nicely browned, transfer the chicken pieces to a plate and set them aside.
In a pot, heat gently on medium to low the garlic, saffron, fennel seeds, tomato puree, chicken stock, white wine, Pernod, salt, and pepper. Stir ensuring nothing sticks to the bottom and simmer for roughly 30 to 40 minutes stirring occasionally. Pour the sauce into the bowl of a food processor and blend it to get a velvety smoothness.
In the meantime, preheat your oven to a toasty 300 degrees Fahrenheit.
Return this gloriously smooth sauce to your trusty Dutch oven and add the sliced potatoes and the browned chicken pieces, complete with their scrumptious juices. Gently stir this delightful ensemble.
Now, it's time to let the magic happen. Cover the pot and let it bake in the oven for a span of 45 to 55 minutes. The outcome you're aiming for is tender potatoes and perfectly cooked chicken.
Prepare the rouille sauce (at the bottom).
Before serving, give the dish a final check for seasoning. Ladle this hearty masterpiece into shallow bowls, accompanied by generous dollops of the delectable Rouille sauce and slices of crusty bread.